DTK COMPUTER, INC.
PEM-2501/PEM-4001
Processor | 80386DX |
Processor Speed | 25/33/40MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 16MB (8MB on external memory card) |
Cache | 64/256KB |
BIOS | AMI/DTK |
Dimensions | 351mm x 306mm |
I/O Options | 32-bit external memory card slot (PEI-306) |
NPU Options | 80387/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J1 | Speaker | J4 |
Turbo LED | J2 | 32-bit external memory card | S1 |
Reset switch | J3 | Turbo switch | W6 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | NPU disabled | W1 | Closed |
NPU enabled | W1 | Open | |
» | CPU speed select fast | W6 | Open |
CPU speed select slow | W6 | pins 1 & 2 closed | |
CPU speed switchable from keyboard | W6 | pins 2 & 3 closed | |
» | BIOS type select 27256 | W7 | pins 1 & 2 closed |
BIOS type select 27512 | W7 | pins 2 & 3 closed | |
» | DMA speed select 8MHz | W8 | Closed |
DMA speed select 6MHz | W8 | Open | |
» | Monitor type select monochrome | SW1/6 | Off |
Monitor type select color | SW1/6 | On |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
DRAM JUMPER CONFIGURATION | |||||||
Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | W2 | W3 |
1MB | On | On | On | On | On | pins 2 & 3 closed | pins 2 & 3 closed |
2MB | On | On | On | On | On | pins 2 & 3 closed | pins 2 & 3 closed |
4MB | On | On | Off | On | Off | pins 1 & 2 closed | pins 1 & 2 closed |
5MB | Off | On | Off | Off | On | pins 2 & 3 closed | pins 1 & 2 closed |
8MB | Off | On | Off | Off | Off | pins 1 & 2 closed | pins 1 & 2 closed |
12MB | Off | Off | On | N/A | N/A | N/A | N/A |
16MB | Off | Off | Off | N/A | N/A | N/A | N/A |
CACHE CONFIGURATION | ||
Size | Bank 0 | Tag |
64KB | (8) 16K x 4 | (2) 16K x 4 |
256KB | (8) 64K x 4 | (2) 64K x 4 |
CACHE JUMPER CONFIGURATION | ||
Size | W4 | W5 |
64KB | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed |